This BETA includes a refactoring of the Active Directory and LDAP integration. It has a rework of serial port support, adding the ability to set the serial port speed. The NFS sharing was refactored in BETA2 with an eye towards maintaining compatability with sharing schemes set up in previous FreeNAS releases. The refactored sharing is more powerful and flexible than previous releases, while enforcing the OS based rules. Support for the LSI “skinny” RAID controllers was added, including the 9265/9285.

Upgrading an existing ZFS pool is a one way street, once the upgrade is done it is not possible to use older versions of FreeNAS, nor is it possible to downgrade your pool. This upgrade can be done by running zpool upgrade from the CLI, it is not done automatically via the upgrader, nor is there a way to do the upgrade from the GUI.